Tubing hanger setting tool

ABSTRACT

A setting tool releasably attachable to a tubing hanger and lowered into a well casing on a running string, the hanger being set in the casing by fluid pressure imposed on the setting tool to effect expansion of tubing hanger slips into anchoring engagement with the well casing. When the fluid pressure reaches a predetermined value, it conditions the setting tool with respect to the tubing hanger to enable the setting tool to be released from the tubing hanger, as by rotating the running string and the setting tool attached thereto.

United States Patent 1 1 1111 3,871,447 Crowe 1 1 Mar. 18, 1975 15 TUBING HANGER SETTING TOOL 2,915,126 12/1959 POllS .1 166/98 a Inventor: Talmadge L. Crowe. Houston, Tex 3,265,132 8/1966 Edwards, Jrv l66/l. 0 [731 Asslgneez 22:?! Oil Tools, Inc., Los Angeles, Primar'v Emmmer james A. Lgppink Attorney, Agent, or Firm-Bernard Kriegel [22] Filed: June 8, 1974 21 A N 7 8 1 4 5 3 4 57 ABSTRACT Related U.S. Application Data [62] Division of Ser- 27591 July 28, 972, Pa A setting tool releasably attachable to a tubmg hanger 3.330.295, which is a division f Sen NO 243306, and lowered into a well casing on a runmng string, the April 13. I972. Pat. No. 3,771,603. hanger being set in the casing by fluid pressure imposed on the setting tool to effect expansion of tubing [52] U.S. Cl. 166/120, 166/124 ang slip int an h ring ngagem nt with the well 1511 Int. Cl E2111 23/00 ingh n t fluid pr ssu e r a h s a pr deter- [58] Field of Search 166/237, 120, 212, 123, mined value, it conditions the setting tool with respect 166/125, 124, 181, 132, 139 to the tubing hanger to enable the setting tool to be released from the tubing hanger, as by rotating the I561 References Cited running string and the setting tool attached thereto.

UNITED STATES PATENTS 2.901.044 8/]959 Arnold 166/98 12 Clams 37 Drawmg a 3 43 66' 2 t I N- 47a CL -m Ez--v 1, 11 14 a{ M ,I I:

4 a :1 J r 1 {-46 47-" 'Lt- :2 4 I\ 1&8; a v E a M I dd! PEA" ck W" a are-a v4: S e 1 w ke? M Q .98 5/} 5 fr dfid fl 4 1 i 20 77 WS/ c J06 3 33 J9 J0.9

7! l w 30 r I? E 4 a .ma 1 e1 7? 2.9K. (at i r t 4% i t a HART 8 I975 PATtNTEl] SHEET 5 [1F 19 FATENTEU I 81975 SHEET 13 0F 19 was PATENTEDHAR 1 W 3'. 87 1.447

SHEET 18 0F 19 fi s-.316.

PATENTED MAR 5 SHEET 19 0F 19 .K4G.31c. 

1. In a setting tool for a tubing hanger anchorable in a well casing and having a receptacle for the setting tool, said setting tool comprising: an elongated outer tubular body having means at its upper end for connection with a running pipe string, an elongated inner body longitudinally shiftably disposed in said outer body, piston means carried by said bodies and forming a pressure chamber therebetween, said inner body having a fluid passage extending longitudinally therein and a port leading between said passage and said pressure chamber, valve means normally closing said port to admit pressure fluid to said pressure chamber from said passage, connector means on said outer body for connection with one part of the tubing hanger, connector means on said inner body for connection with another relatively movable part of the tubing hanger, whereby pressure fluid applied to said pressure chamber to effect relative longitudinal shifting of said bodies will effect corresponding shifting of the tubing hanger parts, and a plurality of flow tubes carried by said inner body and projecting downwardly therefrom, saId flow tubes having passages communicating with said passage in said inner body.
 2. In a setting tool as defined in claim 1, said outer and inner bodies having longitudinally extended key and slot means for maintaining said bodies in a fixed relative orientation while said inner body is shifted longitudinally relative to said outer body.
 3. In a setting tool as defined in claim 1, said inner and outer bodies having cooperative releasable latch means releasably securing said bodies against relative longitudinal movement when said valve means closes said port.
 4. In a setting tool as defined in claim 1, said inner and outer bodies having cooperative releasable latch means releasably securing said bodies against relative longitudinal movement, said valve means having means cooperative with said latch means to prevent release thereof when said valve closes said port.
 5. In a setting tool as defined in claim 1, said connector means on said outer body comprising a thread engageable in the receptacle of the tubing hanger, and said connector means on said inner body comprising connector rod locking means engageable with a connector rod of the tubing hanger.
 6. In a setting tool as defined in claim 1, said valve means comprising a valve sleeve longitudinally shiftable in said passage in said inner body, said valve sleeve having seat means for a seating element travelling in fluid flowing through said passage to close said seat means to shift said valve sleeve responsive to fluid pressure.
 7. In a setting tool as defined in claim 1, said inner and outer bodies having cooperative releasable latch means initially securing said bodies against relative longitudinal movement, said latch means comprising a shoulder on one of said bodies and resilient latch fingers on the other of said bodies, and means releasably holding said latch fingers in engagement with said shoulder.
 8. In a setting tool as defined in claim 1, said inner and outer bodies having cooperative releasable latch means initially securing said bodies against relative longitudinal movement, said latch means comprising a shoulder on one of said bodies and resilient latch fingers on the other of said bodies, said valve means having means engageable with said latch fingers when said valve means closes said port to hold said latch fingers in engagement with said shoulder and releasable from engagement with said latch fingers when said valve means opens said port.
 9. In a setting tool as defined in claim 1, said inner and outer bodies having cooperative releasable latch means initially securing said bodies against relative longitudinal movement, said latch means comprising a shoulder on one of said bodies and resilient latch fingers on the other of said bodies, said valve means comprising a sleeve longitudinally shiftable in said passage in said inner body, said sleeve having a portion engaged with said latch fingers when said port is closed to hold said latch fingers in engagement with said latch fingers.
 10. In a setting tool as defined in claim 1, said inner and outer bodies having cooperative releasable latch means initially securing said bodies against relative longitudinal movement, said latch means comprising a shoulder on one of said bodies and resilient latch fingers on the other of said bodies, said valve means comprising a sleeve longitudinally shiftable in said passage in said inner body, said sleeve having a portion engaged with said latch fingers when said port is closed to hold said latch fingers in engagement with said latch fingers, said valve sleeve having seat means for a seating element travelling in fluid flowing through said passage to close said seat means and shift said sleeve responsive to fluid pressure to a position at which said port is open and said latch fingers are released from said shoulder.
 11. In a setting tool as defined in claim 1, said connector means on said outer body comprising a thread, and said connector means on said inner body comprising locking means engagEable with a connector rod carried by the tubing hanger upon longitudinal movement of said inner body in said outer body.
 12. In a setting tool as defined in claim 1, said connector means on said outer body comprising a thread, and said connector means on said inner body comprising locking means engageable with a connector rod carried by the tubing hanger upon longitudinal movement of said inner body in said outer body, said inner and outer bodies having cooperative longitudinally extended key and slot means for maintaining said bodies in a fixed relative orientation, whereby said outer body is rotatable by said inner body to release said thread from said tubing hanger. 